package com.roin.learn.jms;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.MessageConsumer;
import javax.jms.Session;
import javax.jms.TextMessage;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;

/**
 * 消息消费者<br>
 * 
 * @author 罗毅
 * @version 1.0,2017年5月27日 下午3:10:33
 * @since learn-jms 0.0.1
 */
public class JmsConsumer {
	private static final String USERNAME = ActiveMQConnection.DEFAULT_USER;// 默认连接用户名
	private static final String PASSWORD = ActiveMQConnection.DEFAULT_PASSWORD;// 默认连接密码
	private static final String BROKEURL = ActiveMQConnection.DEFAULT_BROKER_URL;// 默认连接地址

	public static void main(String[] args) {
		ConnectionFactory connectionFactory;// 连接工厂
		Connection connection = null;// 连接

		Session session;// 会话 接受或者发送消息的线程
		Destination destination;// 消息的目的地

		MessageConsumer messageConsumer;// 消息的消费者

		// 实例化连接工厂
		connectionFactory = new ActiveMQConnectionFactory(USERNAME, PASSWORD,BROKEURL);
		try {
            //通过连接工厂获取连接
            connection = connectionFactory.createConnection();
            //启动连接
            connection.start();
            //创建session
            session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            //创建一个连接HelloWorld的消息队列
            destination = session.createQueue("HelloWorld");
            //创建消息消费者
            messageConsumer = session.createConsumer(destination);

            while (true) {
                TextMessage textMessage = (TextMessage) messageConsumer.receive(100000);
                if(textMessage != null){
                    System.out.println("收到的消息:" + textMessage.getText());
                }else {
                    break;
                }
            }

        } catch (JMSException e) {
            e.printStackTrace();
        }
	}

}
